70 lines
2.1 KiB
C
70 lines
2.1 KiB
C
// This file is part of the CircuitPython project: https://circuitpython.org
|
|
//
|
|
// SPDX-FileCopyrightText: Copyright (c) 2018 Scott Shawcroft for Adafruit Industries
|
|
//
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
#include <string.h>
|
|
|
|
#include "lib/oofatfs/ff.h"
|
|
#include "py/mpconfig.h"
|
|
#include "py/mphal.h"
|
|
#include "py/mpstate.h"
|
|
#include "py/runtime.h"
|
|
#include "py/stream.h"
|
|
|
|
#include "supervisor/shared/serial.h"
|
|
#include "supervisor/shared/status_leds.h"
|
|
|
|
#if CIRCUITPY_WATCHDOG
|
|
#include "shared-bindings/watchdog/__init__.h"
|
|
#define WATCHDOG_EXCEPTION_CHECK() (MP_STATE_VM(mp_pending_exception) == &mp_watchdog_timeout_exception)
|
|
#else
|
|
#define WATCHDOG_EXCEPTION_CHECK() 0
|
|
#endif
|
|
|
|
int mp_hal_stdin_rx_chr(void) {
|
|
for (;;) {
|
|
#ifdef MICROPY_VM_HOOK_LOOP
|
|
MICROPY_VM_HOOK_LOOP
|
|
#endif
|
|
mp_handle_pending(true);
|
|
if (serial_bytes_available()) {
|
|
toggle_rx_led();
|
|
return serial_read();
|
|
}
|
|
}
|
|
}
|
|
|
|
mp_uint_t mp_hal_stdout_tx_strn(const char *str, size_t len) {
|
|
toggle_tx_led();
|
|
|
|
#ifdef CIRCUITPY_BOOT_OUTPUT_FILE
|
|
if (boot_output != NULL) {
|
|
// Ensure boot_out.txt is capped at 1 filesystem block and ends with a newline
|
|
#define TRUNCATED MP_ERROR_TEXT("[truncated due to length]")
|
|
size_t truncated_message_len = decompress_length(TRUNCATED);
|
|
size_t maxlen = 512 - truncated_message_len; // includes trailing '\0' so we do not need to account for trailing newline '\n' in vstr_add_byte
|
|
if (len + boot_output->len > maxlen) {
|
|
size_t remaining_len = maxlen - boot_output->len;
|
|
vstr_add_strn(boot_output, str, remaining_len);
|
|
char buf[truncated_message_len];
|
|
vstr_add_str(boot_output, decompress(TRUNCATED, buf));
|
|
vstr_add_byte(boot_output, '\n');
|
|
boot_output = NULL;
|
|
} else {
|
|
vstr_add_strn(boot_output, str, len);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return serial_write_substring(str, len);
|
|
}
|
|
|
|
uintptr_t mp_hal_stdio_poll(uintptr_t poll_flags) {
|
|
uintptr_t ret = 0;
|
|
if ((poll_flags & MP_STREAM_POLL_RD) && serial_bytes_available()) {
|
|
ret |= MP_STREAM_POLL_RD;
|
|
}
|
|
return ret;
|
|
}
|